512078345 has 8 divisors (see below), whose sum is σ = 619185600. Its totient is φ = 406534960.

The previous prime is 512078327. The next prime is 512078389. The reversal of 512078345 is 543870215.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 512078345 - 2¹² = 512074249 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 390245 + ... + 391554.

It is an arithmetic number, because the mean of its divisors is an integer number (77398200).

Almost surely, 2^512078345 is an apocalyptic number.

It is an amenable number.

512078345 is a deficient number, since it is larger than the sum of its proper divisors (107107255).

512078345 is a wasteful number, since it uses less digits than its factorization.

512078345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 781935.

The product of its (nonzero) digits is 33600, while the sum is 35.

The square root of 512078345 is about 22629.1481280228. The cubic root of 512078345 is about 800.0408026064.

The spelling of 512078345 in words is "five hundred twelve million, seventy-eight thousand, three hundred forty-five".